When you have anxiety in any form, you can really hurt yourself mentally and emotionally by letting it get away from you.
For some, medication and therapy is the way to go. Some use yoga and meditation to try and relax their minds.
You cannot predict your future. You can only control your present, which is here and now. What can you focus on - here and now - that will help you in this situation?
Would writing down your feelings help? If so, start a journal. Would researching jobs just so you have a feel for what requirements jobs are asking for help? If so, do some research online. If you are here in the United States, you can go to www.glassdoor.com and see interview questions, reviews, company stats and more on different companies.
If you are not presently doing any kind of physical activity, I would encourage you to begin walking briskly at least twice a day for 15 to 30 minutes depending on your endurance. This really will help you clear your mind and get your body moving.
Don't be afraid to reach out and ask for help. There are many folks that would be glad to step in and help, if they knew you had a problem. Good luck.